test: use arrow functions in addons tests

Convert all anonymous callback functions in `test/addons/**/*.js`
to use arrow functions, except for those in
`test/addons/make-callback/test.js` (which reference `this`)

`writing-tests.md` states to use arrow functions when appropriate.

PR-URL: https://github.com/nodejs/node/pull/30131


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>